POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly and driver door key cylinder lock or unlock switch signals from the front door lock assembly LH*1 or front door lock assembly RH*2. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.


WIRING DIAGRAM

Figure 1. for LHD:

B001CGTE21

Figure 2. for RHD:

B001CGTE22

CAUTION / NOTICE / HINT

Note


  • The power door lock control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power door lock control system after confirming that the communication systems are functioning properly.

    Click here

  • w/ Door Control Battery:

    As the door control battery is installed between the vehicle battery and main body ECU (multiplex network body ECU), first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (multiplex network body ECU) before performing this troubleshooting procedure.

    Click here

  • w/ Entry and Start System:

    If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check door lock operation.

      Click here

      Result
      Result Proceed to
      All doors cannot be locked by multiplex network master switch assembly A
      All doors cannot be locked by driver door key cylinder B

    B

    READ VALUE USING GTS (Door Key SW-Lock, D Door Key SW-UL) Click here

    A

  2. READ VALUE USING GTS (Door Lock Switch Status, Door Unlock Switch Status)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Master Switch / Data List.

    5. Read the Data List according to the display on the GTS.

      Master Switch
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Lock Switch Status Driver side door control switch lock signal / ON or OFF

      ON: Lock side of driver side door control switch pushed

      OFF: Lock side of driver side door control switch not pushed

      		 -
      Door Unlock Switch Status Driver side door control switch unlock signal / ON or OFF

      ON: Unlock side of driver side door control switch pushed

      OFF: Unlock side of driver side door control switch not pushed

      		 -
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here

  3. READ VALUE USING GTS (Door Key SW-Lock, D Door Key SW-UL)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

    5. Read the Data List according to the display on the GTS.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Key SW-Lock Driver side door key-linked switch lock signal / ON or OFF

      OFF: Driver door key cylinder not turned to lock position

      ON: Driver door key cylinder turned to lock position

      		 -
      D Door Key SW-UL Driver side door key-linked switch unlock signal / ON or OFF

      OFF: Driver door key cylinder not turned to unlock position

      ON: Driver door key cylinder turned to unlock position

      		 -
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

  4. INSPECT FRONT DOOR LOCK ASSEMBLY (for Driver Side)


    1. for LHD:


      1. Remove the front door lock assembly LH.

        Click here

      2. Inspect the front door lock assembly LH.

        Click here

    2. for RHD:


      1. Remove the front door lock assembly RH.

        Click here

      2. Inspect the front door lock assembly RH.

        Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY (for Driver Side) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY (for Driver Side) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)


    1. for LHD:


      1. Disconnect the K6 front door lock assembly LH connector.

      2. Disconnect the G64*1 or G218*2 main body ECU (multiplex network body ECU) connector.


        • *1: for 5L-E

        • *2: except 5L-E

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        for 5L-E:
        Tester Connection Condition Specified Condition
        K6-9 (L) - G64-11 (L2) Always Below 1 Ω
        K6-10 (UL) - G64-24 (UL3) Always Below 1 Ω
        K6-7 (E) - Body ground Always Below 1 Ω
        K6-9 (L) or G64-11 (L2) - Other terminals and body ground Always 10 kΩ or higher
        K6-10 (UL) or G64-24 (UL3) - Other terminals and body ground Always 10 kΩ or higher
        except 5L-E:
        Tester Connection Condition Specified Condition
        K6-9 (L) - G218-29 (L2) Always Below 1 Ω
        K6-1 (UL) - G218-2 (UL3) Always Below 1 Ω
        K6-7 (E) - Body ground Always Below 1 Ω
        K6-9 (L) or G218-29 (L2) - Other terminals and body ground Always 10 kΩ or higher
        K6-1 (UL) or G218-2 (UL3) - Other terminals and body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the J6 front door lock assembly RH connector.

      2. Disconnect the G64*1 or G218*2 main body ECU (multiplex network body ECU) connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        for 5L-E:
        Tester Connection Condition Specified Condition
        J6-6 (L) - G64-11 (L2) Always Below 1 Ω
        J6-5 (UL) - G64-24 (UL3) Always Below 1 Ω
        J6-8 (E) - Body ground Always Below 1 Ω
        J6-6 (L) or G64-11 (L2) - Other terminals and body ground Always 10 kΩ or higher
        J6-5 (UL) or G64-24 (UL3) - Other terminals and body ground Always 10 kΩ or higher
        except 5L-E:
        Tester Connection Condition Specified Condition
        J6-6 (L) - G218-29 (L2) Always Below 1 Ω
        J6-5 (UL) - G218-2 (UL3) Always Below 1 Ω
        J6-8 (E) - Body ground Always Below 1 Ω
        J6-6 (L) or G218-29 (L2) - Other terminals and body ground Always 10 kΩ or higher
        J6-5 (UL) or G218-2 (UL3) - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR